35mm DG. Hopefully the price wouldn't over than 800, and then I will jump in for it.

Competition is fierce in that segment. There's the Samyang and the Zeiss, not to mention the original Canon and Nikon lenses. Hope Sigma will take it into account.

If Sigma can put this out for less than the price of their 85/1.4, then there is no competition. Not everyone is willing to use manual focus. I for one require AF on my walkaround prime, and there's nothing in either system between the ancient 35/2 and expensive 35L/35G. If this comes out at $800 or so, then it'll be my next lens and will probably be glued to my D700 (yay AFMA!). I'm not willing to pay $1500-2000 per prime, but I would like image quality similar to Sigma's 30/1.4 crop lens, which I used to own when I shot with a Canon crop body.

ahhhhh i BOUGHT THE 120-300 A MONTH AGO! lets hope that its just lighter .. i saw that a focus switch and a metal lens hood has been add..anyways mine works perfectly, this lens is reeeeeally good, i was not expecing a replacement anytime soon, but sigma is always improving and pleases us with nice products.

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAArgh decisions.I can probably console myself with the 70-300L being more "walkaround", which I do a lot when birdhunting. Although i would very much like a 300/2.8, and if that 300/2.8 comes in black with an extra 120-299mm as well, then maybe I might have to sell my first and only L to upgrade.

As for Sigma vs Samyang. hmmm. The Samyang is great, great IQ, but I bought mine 2nd hand after a fall, it still works but it's got its quirks. I was contemplating if I could palm it off to someone and get a new (or better-used) one for less than $100 out-of-pocket then I might consider doing that one day in the future. Now i've got this to consider too, if the IQ beats or very-nears the Samyang, and has AF (even dodgy Sigma AF is enough, mostly it'll hyperfocal on MF anyway), then this is worth contemplating too. So's the new Schneider Kreuznach 35/1.4, but that's going to probably be MF and in Zeiss-Preiss territory.

I find it fascinating that an upgrade on the Sigma 120-300mm f/2.8 DG OS HSM has happened so quickly. The previous model of the Sigma 120-300mm f/2.8 DG OS HSM was almost there for me, just lacking very slightly in some key performance areas.

As people are saying "Sigma do listen", there's a big chance I'll pick up this lens. If the required performance is there, my EF 300 f/2.8is could be headed for retirement. Think about it, a 120-300 f/2.8 zoom makes a pretty compelling case, especially if the critical areas of IQ and AF speed and consistent build quality cross into premium territory.

-PW

Ditto and if the 35 is anywhere near as good as the 85 then I'm gonna be all over that one too the siggy 50f1.4 new version blows the canon lenses into the weeds